There is mushroom growth in number of paid websites on internet. There are many sites out there which promise emails worth the likes of $5, $50 or $100 and upwards. They never honour their promises. DO NOT join any of these sites. These are ridiculous attempts to take your money and you will never see a penny back.They keep a wall of secrecy between them and their customers. This secrecy goes to such absurd limits that customer even do not know who are the owners of these sites and to whom they should approach in case of a problem.
There are no doubts sites which pay once you reach the minimum payout. But these sites also play tricks on customers. I prestigious paid site, www.mylot.com, blocked my user ID just before I was reaching the minimum payout of $10. I have sent them many communications but they have not told me the reason. The problem is that there is no mention on the site about the owners of the site or Administrator or Webmaster.
People join these sites, spend their time and resources in the form of computer, internet connection, power bills, upgrade free membership by paying fees, and these sites cheat them.
Presently there is no body which can supervise the work of these sites. These sites are under no control. Some people, no doubt, are maintaining a list of scam sites, but that is only for information. Such list are growing with more and more sites are proving scam sites. Below is a link where you will find a list of scam sites. Refer to it before you sign any paid site. It will give you some protection.